Vulnerability-Lookup

GHSA-58G7-7F52-H92C

Vulnerability from github – Published: 2026-10-28 19:57 – Updated: 2026-10-28 19:57

Summary

Highcharts Dashboards parses fullscreen labels as HTML

Details

Impact

The edit mode fullscreen labels are parsed as HTML when the corresponding control is rendered. An attacker who controls the Dashboards language options can supply markup carrying event handlers, which then execute in the origin of the page hosting the dashboard. Exploitation requires that untrusted data reach the Dashboards language configuration and that the affected control be rendered. Script running this way has the same access to page data, storage and session state as the hosting application.

Workarounds

Until you can upgrade, replace Fullscreen.prototype.setButtonText atapplication startup. The replacement is the original method with textContent in place of innerHTML.

If you install Dashboards from npm

Import the module once, before any board is created.

import Fullscreen from '@highcharts/dashboards/es-modules/Dashboards/EditMode/Fullscreen.js';

Fullscreen.prototype.setButtonText = function () {
    const editMode = this.board.editMode,
        button = editMode?.tools.contextMenu?.items.viewFullscreen;

    if (button?.innerElement) {
        const lang = editMode.lang;

        button.innerElement.textContent =
            (this.isOpen ? lang.exitFullscreen : lang.viewFullscreen) || '';
    }
};

If you load Dashboards from a `<script>` tag

The same replacement, taking Fullscreen from the global namespace. It must run after modules/layout and before any board is created.

<script src="https://code.highcharts.com/dashboards/dashboards.js"></script>
<script src="https://code.highcharts.com/dashboards/modules/layout.js"></script>
<script>
{
    const Fullscreen = window.Dashboards?.Fullscreen;

    Fullscreen.prototype.setButtonText = function () {
        const editMode = this.board.editMode,
            button = editMode?.tools.contextMenu?.items.viewFullscreen;

        if (button?.innerElement) {
            const lang = editMode.lang;

            button.innerElement.textContent =
                (this.isOpen ? lang.exitFullscreen : lang.viewFullscreen) || '';
        }
    };
}
</script>

If your application does not need Edit Mode, leaving it disabled (editMode.enabled: false) removes the exposure as well. The same applies to the context menu — the label is only reachable when viewFullscreen is among editMode.contextMenu.items.

Obtaining the patched version

The patched releases are available from all the usual distribution channels. With npm, upgrade the affected package to the patched version listed above, for example npm install @highcharts/dashboards@4.2.3. If you load Highcharts Dashboards from a CDN, use a versioned URL, for example https://code.highcharts.com/dashboards/4.2.3/dashboards.js. For more on each installation method, see the installation guide.

Severity

8.4 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@highcharts/dashboards"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.0.0"
            },
            {
              "fixed": "4.2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-118253"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-28T19:57:19Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\nThe edit mode fullscreen labels are parsed as HTML when the corresponding control is rendered. An attacker who controls the Dashboards language options can supply markup carrying event handlers, which then execute in the origin of the page hosting the dashboard. Exploitation requires that untrusted data reach the Dashboards language configuration and that the affected control be rendered. Script running this way has the same access to page data, storage and session state as the hosting application.\n\n### Workarounds\n\nUntil you can upgrade, replace `Fullscreen.prototype.setButtonText` atapplication startup. The replacement is the original method with `textContent` in place of `innerHTML`.\n\n#### If you install Dashboards from npm\n\nImport the module once, before any board is created.\n\n```js\nimport Fullscreen from \u0027@highcharts/dashboards/es-modules/Dashboards/EditMode/Fullscreen.js\u0027;\n\nFullscreen.prototype.setButtonText = function () {\n    const editMode = this.board.editMode,\n        button = editMode?.tools.contextMenu?.items.viewFullscreen;\n\n    if (button?.innerElement) {\n        const lang = editMode.lang;\n\n        button.innerElement.textContent =\n            (this.isOpen ? lang.exitFullscreen : lang.viewFullscreen) || \u0027\u0027;\n    }\n};\n```\n\n#### If you load Dashboards from a `\u003cscript\u003e` tag\n\nThe same replacement, taking `Fullscreen` from the global namespace. It must run after `modules/layout` and before any board is created.\n\n```html\n\u003cscript src=\"https://code.highcharts.com/dashboards/dashboards.js\"\u003e\u003c/script\u003e\n\u003cscript src=\"https://code.highcharts.com/dashboards/modules/layout.js\"\u003e\u003c/script\u003e\n\u003cscript\u003e\n{\n    const Fullscreen = window.Dashboards?.Fullscreen;\n\n    Fullscreen.prototype.setButtonText = function () {\n        const editMode = this.board.editMode,\n            button = editMode?.tools.contextMenu?.items.viewFullscreen;\n\n        if (button?.innerElement) {\n            const lang = editMode.lang;\n\n            button.innerElement.textContent =\n                (this.isOpen ? lang.exitFullscreen : lang.viewFullscreen) || \u0027\u0027;\n        }\n    };\n}\n\u003c/script\u003e\n```\n\nIf your application does not need Edit Mode, leaving it disabled (`editMode.enabled: false`) removes the exposure as well. The same applies to the context menu \u2014 the label is only reachable when `viewFullscreen` is among `editMode.contextMenu.items`.\n\n### Obtaining the patched version\nThe patched releases are available from all the usual distribution channels. With npm, upgrade the affected package to the patched version listed above, for example `npm install @highcharts/dashboards@4.2.3`. If you load Highcharts Dashboards from a CDN, use a versioned URL, for example `https://code.highcharts.com/dashboards/4.2.3/dashboards.js`. For more on each installation method, see the [installation guide](https://www.highcharts.com/docs/dashboards/installation).",
  "id": "GHSA-58g7-7f52-h92c",
  "modified": "2026-10-28T19:57:20Z",
  "published": "2026-10-28T19:57:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/highcharts/highcharts/security/advisories/GHSA-58g7-7f52-h92c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/highcharts/highcharts/commit/f97213bab745e40f628720c21f4e8b31ee3e768b"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/highcharts/highcharts"
    },
    {
      "type": "WEB",
      "url": "https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Highcharts Dashboards parses fullscreen labels as HTML"
}

CVE-2026-118253 (GCVE-0-2026-118253)

Vulnerability from cvelistv5 – Published: 2026-10-28 18:11 – Updated: 2026-10-29 20:55

Title

Highcharts Dashboards: fullscreen labels are parsed as HTML

Summary

Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.3, Highcharts Dashboards edit mode parses fullscreen language labels as HTML rather than inserting them as text. An attacker who controls Dashboards language options can supply markup with event handlers, which execute in the hosting page origin when the fullscreen control is rendered. The label is reachable only when edit mode is enabled and viewFullscreen is present in the context-menu items. This issue is fixed in 4.2.3.

Severity

8.4 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-29 15:36 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 8024 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/highcharts/highcharts/security…	x_refsource_CONFIRM
https://github.com/highcharts/highcharts/commit/f…	x_refsource_MISC
https://github.com/highcharts/highcharts/releases…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
highcharts	highcharts	Affected: < 13.0.0-beta.2
@highcharts	dashboards	Affected: >= 1.0.0, < 4.2.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-118253",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-29T15:36:39.191164Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-29T20:55:13.964Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "highcharts",
          "vendor": "highcharts",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 13.0.0-beta.2"
            }
          ]
        },
        {
          "product": "dashboards",
          "vendor": "@highcharts",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.0.0, \u003c 4.2.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.3, Highcharts Dashboards edit mode parses fullscreen language labels as HTML rather than inserting them as text. An attacker who controls Dashboards language options can supply markup with event handlers, which execute in the hosting page origin when the fullscreen control is rendered. The label is reachable only when edit mode is enabled and viewFullscreen is present in the context-menu items. This issue is fixed in 4.2.3."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "ACTIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T18:11:03.809Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/highcharts/highcharts/security/advisories/GHSA-58g7-7f52-h92c",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/highcharts/highcharts/security/advisories/GHSA-58g7-7f52-h92c"
        },
        {
          "name": "https://github.com/highcharts/highcharts/commit/f97213bab745e40f628720c21f4e8b31ee3e768b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/highcharts/highcharts/commit/f97213bab745e40f628720c21f4e8b31ee3e768b"
        },
        {
          "name": "https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.3"
        }
      ],
      "source": {
        "advisory": "GHSA-58g7-7f52-h92c",
        "discovery": "UNKNOWN"
      },
      "title": "Highcharts Dashboards: fullscreen labels are parsed as HTML"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-118253",
    "datePublished": "2026-10-28T18:11:03.809Z",
    "dateReserved": "2026-10-27T20:13:55.313Z",
    "dateUpdated": "2026-10-29T20:55:13.964Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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